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Amines affecting films is interesting but not quite relevant to answering the question whether an amino acid can affect the film. An ionized molecule is not likely going to diffuse into a organic film and that is why the Seneye and Seachem films can accurately measure free ammonia. The molecule must get into the film to interact with the indicator molecule. This not an interaction at the surface of the film (My understanding of how these films work)This (and a few other similar papers I'd seen) seems to describe the seachem films quite well.
The color shift is not quite the same as the indicator (bromocresol green) in the paper, but it's close.
can compare this vs fig 5b from the paper.
Also this paper supports the idea that amines will generate a color change from the films. Interesting.